Boise has 3 of what I would consider long term, safe RV parks. On the north end, off hwy 55 is Hi Valley RV Park. Near downtown is Riverside RV Park and on the southwest side, near I-84 exit #43, is Boise/Meridian RV Resort. We have stayed at the Meridian park, have driven through and had friends stay at the Hi Valley and can vouch for both. Have never been through the Riverside Park, but have friends that stay there and say it is nice, especially for kids and fishing on the river.